TY - JOUR AU - Farzali Izadi AU - Foad Khoshnam AU - Arman Shamsi Zargar TI - Rank of elliptic curves associated to Brahmagupta quadrilaterals JO - Colloquium Mathematicum PY - 2016 SP - 187 EP - 192 VL - 143 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm6556-12-2015/ DO - 10.4064/cm6556-12-2015 LA - en ID - 10_4064_cm6556_12_2015 ER -